Table 1. Hydrogen-bond geometry (Å, °).

Cg is the centroid of the C2–C7 benzene ring.

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C4—H4⋯Cg i	0.93	2.95	3.696 (4)	138
C7—H7⋯Cg ii	0.93	2.84	3.572 (4)	137

Symmetry codes: (i) ; (ii) .